WO2018149069A1 - Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor - Google Patents

Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor Download PDF

Info

Publication number
WO2018149069A1
WO2018149069A1 PCT/CN2017/089071 CN2017089071W WO2018149069A1 WO 2018149069 A1 WO2018149069 A1 WO 2018149069A1 CN 2017089071 W CN2017089071 W CN 2017089071W WO 2018149069 A1 WO2018149069 A1 WO 2018149069A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
substrate
optical
coreless
array
Prior art date
Application number
PCT/CN2017/089071
Other languages
French (fr)
Chinese (zh)
Inventor
钱福琦
刘鹤
周听飞
Original Assignee
深圳市鹏大光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市鹏大光电技术有限公司 filed Critical 深圳市鹏大光电技术有限公司
Publication of WO2018149069A1 publication Critical patent/WO2018149069A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling and a method of fabricating the same.
  • the present invention provides a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling and a method for fabricating the same, which is low in cost and high in optical signal coupling efficiency and capable of solving the above problems.
  • the optical fiber between the cover plate and the rear portion of the substrate is covered with a tail rubber for fixing and protecting the optical fiber, and the height of the tail rubber is less than or equal to the height of the cover plate.
  • each V-shaped groove is consistent with the height of the upper surface of the rear section of the substrate.
  • Step 2 Coreless fiber fusion: a coreless fiber is fused at one end of each fiber, and the length and size of each coreless fiber are consistent;
  • Step 5 Coreless fiber polishing: Grinding one end of each assembled coreless fiber with a spherical surface, grinding the upper hemisphere of the spherical surface into an optical plane that can reflect the optical signal.
  • the optical plane is at an angle of 30° to 60° to the bottom surface of the substrate.
  • a coreless optical fiber 31 with a self-focusing effect is welded on the end surface thereof, and the cover plate 2 is disposed on the front portion 11 of the substrate, and the cover plate 2 and each V-shaped groove are combined to form a receiving space for the fixed optical fiber;
  • the core fiber 31 includes an optical plane 311 at an angle of 30° to 60° to the bottom surface of the substrate 1 and an arcuate spherical surface 312 connecting the optical plane 311 and the bottom surface of the coreless fiber 31;
  • the external optical signal coreless fiber 31 is self-focusing, curved spherical surface
  • the 312 concentrating and optical plane 311 reflects and enters the inside of the optical fiber 3.
  • the height of the tail rubber 4 is higher than the height of the cover 2, it is easy to cause the tail rubber 4 to fall off due to the use and processing of the crucible 4, thereby greatly shortening the service life of the tail rubber 4. .
  • it is not limited to the use of the tail rubber 4 to assist in fixing the optical fiber 3, and other fixing structures may be used as long as the optical fiber 3 can be well fixed.
  • the bottom surface of each of the V-shaped grooves is in line with the height of the upper surface of the rear stage 12 of the substrate. Such an arrangement can ensure that the height of the optical fiber 3 is substantially the same as that of the rear section 12 of the substrate after the optical fiber 3 is mounted on the V-shaped groove. On the one hand, the presence of the slope can be prevented to damage the optical fiber, and on the other hand, the optical path of the optical fiber 3 can be reduced. Angle is more conducive to the transmission of optical signals.
  • the height of the bottom surface of the V-shaped groove may also be slightly higher than the height of the rear section 12 of the substrate or slightly lower than the height of the rear section 12 of the substrate.
  • the present invention also provides a VSCEL or PIN.
  • a method of fabricating an array coupled hemispherical self-focusing lens fiber array, the method of manufacturing comprising the steps of:
  • the optical fiber array provided by the present invention, by welding a coreless fiber with a self-focusing function at one end of each fiber, and processing an optical plane and a curved spherical surface, an optical plane and an arc on the end face of the coreless fiber.
  • the spherical shape can simultaneously achieve the advantages of lens concentrating and optical plane reflecting light, and the self-focusing effect of the coreless fiber itself can enhance the receiving and collecting ability of the optical signal, compared with the existing independent lens and optical plane.
  • the cost of the combined work is greatly reduced, and the tolerance of the fiber array is greatly increased, and the range is larger when the fiber is coupled and adjusted, thereby reducing the coupling difficulty and increasing the coupling efficiency;

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

A hemispherical self-focusing lens optical fibre array for VCSEL or PIN array coupling, and a manufacturing method therefor. By means of the steps of substrate processing, the welding of coreless optical fibres, optical fibre assembling, the polishing of coreless optical fibres, etc., a hemispherical self-focusing lens optical fibre array comprising a substrate (1), a cover plate (2) and multiple optical fibres (3) is manufactured, wherein the substrate (1) comprises a front substrate section (11) and a back substrate section (12); an upper surface of the front substrate section (11) is higher than an upper surface of the back substrate section (12); multiple V-shaped grooves corresponding to the multiple optical fibres (3) on a one-to-one basis are provided on the upper surface of the front substrate section (11); each of the optical fibres (3) is disposed in a V-shaped groove corresponding thereto; after each of the optical fibres (3) protrudes forward from the front substrate section (11), a coreless optical fibre (31) is welded on an end face thereof; the cover plate (2) is disposed on the front substrate section (11); the cover plate (2) and each of the V-shaped grooves define an accommodation space for fixing the optical fibres (3); and a coreless optical fibre (31) comprises an optical plane (311) at an included angle of 30 degrees to 60 degrees relative to a bottom face of the substrate (1), and an arc-shaped spherical face (312) for engaging with the optical plane (311) and a bottom face of the coreless optical fibre (31). Compared with the prior art, the present invention has the advantages of high optical coupling efficiency, low costs, etc.

Description

用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列及其制造方法Hemispherical autofocus lens optical fiber array for VSCEL or PIN array coupling and manufacturing method thereof 技术领域Technical field
本发明涉及光通信技术领域，尤其涉及一种用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列及其制造方法。The present invention relates to the field of optical communication technologies, and in particular, to a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling and a method of fabricating the same.
背景技术Background technique
随着经济时代的发展，通信领域在人们的生活中占据着越来越重要的地位，而且人们已经不再满足于传输速率低、传输能力弱的通信传输，而开始不断改进光纤传输这种传输方式，在这种不断的改进当中，通信领域的光纤技术越来越成熟。With the development of the economic era, the communication field has occupied an increasingly important position in people's lives, and people are no longer satisfied with the transmission transmission with low transmission rate and weak transmission capability, and began to improve the transmission of optical fiber transmission. In this way, the fiber technology in the field of communication is becoming more and more mature.
VCSEL和PIN的出射光垂直于安装的电路板表面，这对于器件的封装和应用都不大方便。最简单的光接口是将光纤与VCSEL和PIN对接，激光器的出射光直接进入光纤，不经过其他中间元件，这样的耦合方式称为垂直耦合。垂直耦合由于光的反射导致速率不能太高，另外，由于是垂直耦合，光纤与PCB成垂直形状，导致光模块的体积增大。现在一般的耦合方式是将光纤阵列研磨成45°反射面实现光信号的90°转角，确保耦合封装的效率和产品的整体结构较小，虽然45°反射面能够实现光信号的全反射，但是光纤阵列与VCSEL和PIN的光信号耦合效率不是很高；现有技术中还有在45°反射面的光路两侧各设置一片透镜，VCSEL和PIN的出射光通过一面透镜聚光后照射到45°反射面，经过45°反射面反射的光线再经过一面透镜聚光后进入光纤内，这样的设置能够大大提高光信号的耦合效率，但是这样的设置成本太高，不利于大批量地生产和使用。The outgoing light of the VCSEL and the PIN is perpendicular to the surface of the mounted circuit board, which is not convenient for packaging and application of the device. The simplest optical interface is to connect the optical fiber to the VCSEL and the PIN. The outgoing light of the laser directly enters the optical fiber without passing through other intermediate components. Such a coupling method is called vertical coupling. The vertical coupling is not too high due to the reflection of light. In addition, due to the vertical coupling, the optical fiber and the PCB form a vertical shape, resulting in an increase in the volume of the optical module. The general coupling method is to grind the fiber array into a 45° reflection surface to achieve a 90° rotation angle of the optical signal, ensuring the efficiency of the coupling package and the overall structure of the product, although the 45° reflection surface can achieve total reflection of the optical signal, but The optical signal coupling efficiency between the optical fiber array and the VCSEL and the PIN is not very high; in the prior art, a lens is disposed on each side of the optical path of the 45° reflecting surface, and the outgoing light of the VCSEL and the PIN is concentrated by a lens and irradiated to 45. The reflecting surface, the light reflected by the 45° reflecting surface is condensed by a lens and then enters the optical fiber. Such a setting can greatly improve the coupling efficiency of the optical signal, but such a setting cost is too high, which is disadvantageous for mass production and use.
发明内容Summary of the invention
针对上述技术中存在的不足之处，本发明设计一种成本低、光信号耦合效率高，能够解决上述问题的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列及其制造方法。In view of the deficiencies in the above techniques, the present invention provides a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling and a method for fabricating the same, which is low in cost and high in optical signal coupling efficiency and capable of solving the above problems.
为实现上述目的，本发明提供的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，包括基板、盖板和多根光纤，所述基板包括基板前段和基板后段，所述基板前段上表面高于所述基板后段上表面，所述基板前段上表面上设有多个与多根光纤一一对应的V形槽，每根光纤均设置在与其对应的V形槽内，且每根光纤均从基板前段向前伸出后其端面上熔接有一段带有自聚 焦效果的无芯光纤，所述盖板设置在基板前段上，且盖板与每个V形槽均围合成固定光纤的容置空间；所述无芯光纤包括与基板底面呈30°至60°夹角的光学平面和衔接光学平面与无芯光纤底面的弧形球面；外部光信号通过无芯光纤自聚焦、弧形球面聚光和光学平面反射后进入所述光纤内部。To achieve the above object, the present invention provides a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling, comprising a substrate, a cover plate and a plurality of optical fibers, the substrate comprising a front portion of the substrate and a rear portion of the substrate, the front portion of the substrate The surface is higher than the upper surface of the rear surface of the substrate, and the upper surface of the front surface of the substrate is provided with a plurality of V-shaped grooves corresponding to the plurality of optical fibers, and each of the optical fibers is disposed in the corresponding V-shaped groove, and each The root fiber is extended forward from the front section of the substrate, and the end face is welded with a section with self-polymerization a core-free optical fiber having a coke effect, the cover plate is disposed on the front portion of the substrate, and the cover plate and each of the V-shaped grooves are respectively formed into a receiving space of the fixed optical fiber; the coreless optical fiber includes 30° to 60° to the bottom surface of the substrate The optical plane of the angle and the curved spherical surface connecting the optical plane and the bottom surface of the coreless fiber; the external optical signal enters the inside of the optical fiber through self-focusing, curved spherical concentrating and optical plane reflection of the coreless fiber.
其中，所述盖板与基板后段之间的光纤上覆盖有用于固定和保护光纤的尾胶，且所述尾胶的高度小于或等于盖板的高度。Wherein, the optical fiber between the cover plate and the rear portion of the substrate is covered with a tail rubber for fixing and protecting the optical fiber, and the height of the tail rubber is less than or equal to the height of the cover plate.
其中，所述无芯光纤的长度为0.15mm至0.25mm。Wherein, the coreless optical fiber has a length of 0.15 mm to 0.25 mm.
其中，所述基板前段和基板后段的交界处设有过度斜面。Wherein, an interface between the front section of the substrate and the rear section of the substrate is provided with an excessive slope.
其中，每个V形槽的底面均与基板后段的上表面高度一致。Wherein, the bottom surface of each V-shaped groove is consistent with the height of the upper surface of the rear section of the substrate.
为了实现上述目的，本发明还提供了一种用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，该制造方法包括以下步骤：In order to achieve the above object, the present invention also provides a method of fabricating a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling, the manufacturing method comprising the steps of:
步骤1、基板加工：在基板上加工出一个斜坡，斜坡将基板分为基板前段和基板后段，再在基板前段的上表面开设多个与光纤形状大小相适配的V形槽； Step 1. Substrate processing: processing a slope on the substrate, the slope dividing the substrate into a front section of the substrate and a rear section of the substrate, and then opening a plurality of V-shaped grooves corresponding to the shape of the optical fiber on the upper surface of the front section of the substrate;
步骤2、无芯光纤熔接：在每根光纤的一端均熔接一段无芯光纤，每段无芯光纤的长度和大小保持一致；Step 2: Coreless fiber fusion: a coreless fiber is fused at one end of each fiber, and the length and size of each coreless fiber are consistent;
步骤3、无芯光纤熔烧：在每根无芯光纤的一端均熔烧形成球面，且该球面的直径与无芯光纤的直径相同；Step 3: Coreless fiber melting: a spherical surface is formed by melting at one end of each coreless fiber, and the diameter of the spherical surface is the same as the diameter of the coreless fiber;
步骤4、光纤组装：将每根熔接好无芯光纤的光纤置于基板上与其对应的V形槽中，并将熔接有无芯光纤球面的一端从基板前段向前伸出，并保持每根光纤伸出的长度一致，最后将盖板固定在基板前段的上表面以固定光纤，组成光纤阵列；Step 4: Fiber assembly: Place each fiber with the coreless fiber in the corresponding V-shaped groove on the substrate, and extend one end of the spherical fiber-free fiber sphere from the front of the substrate, and keep each one The length of the protruding end of the optical fiber is uniform, and finally the cover plate is fixed on the upper surface of the front section of the substrate to fix the optical fiber to form an optical fiber array;
步骤5、无芯光纤研磨：对每根组装好的无芯光纤加工有球面的一端进行研磨，将球面的上半球面研磨成可以反射光信号的光学平面。Step 5. Coreless fiber polishing: Grinding one end of each assembled coreless fiber with a spherical surface, grinding the upper hemisphere of the spherical surface into an optical plane that can reflect the optical signal.
其中，在步骤1中每个V形槽的底面均与基板后段的上表面高度一致。Wherein, in step 1, the bottom surface of each V-shaped groove is consistent with the height of the upper surface of the rear section of the substrate.
其中，步骤2中熔烧出来的球面的直径为0.15mm至0.25mm。Wherein, the diameter of the spherical surface melted in step 2 is 0.15 mm to 0.25 mm.
其中，步骤3还包括尾胶涂覆：盖板与基板后段之间的每根光纤上覆盖有用于固定和保护光纤的尾胶，且所述尾胶的高度小于或等于盖板的高度。Wherein, step 3 further comprises tail rubber coating: each of the optical fibers between the cover plate and the rear portion of the substrate is covered with a tail rubber for fixing and protecting the optical fiber, and the height of the tail rubber is less than or equal to the height of the cover plate.
其中，步骤4中光学平面与基板底面呈30°至60°的夹角。Wherein, in step 4, the optical plane is at an angle of 30° to 60° to the bottom surface of the substrate.
本发明的优势在于： The advantages of the invention are:
1、本发明提供的光纤阵列，通过在每根光纤的一端熔接有一段带有自聚焦功能的无芯光纤，再在无芯光纤的端面上加工出光学平面和弧形球面，光学平面和弧形球面的配合能够同时实现透镜聚光和光学平面反射光的优点，同时无芯光纤本身的自聚焦效果也能加强光信号的接收和聚集能力，相比于现有的利用独立透镜和光学平面组合工作其成本大大降低，另外其还大幅增加了光纤阵列的容差，在对光纤进行耦合调整的时候其范围更大，从而降低了耦合的难度和增加了耦合的效率；1. The optical fiber array provided by the present invention, by welding a coreless fiber with a self-focusing function at one end of each fiber, and processing an optical plane and a curved spherical surface, an optical plane and an arc on the end face of the coreless fiber. The spherical shape can simultaneously achieve the advantages of lens concentrating and optical plane reflecting light, and the self-focusing effect of the coreless fiber itself can enhance the receiving and collecting ability of the optical signal, compared with the existing independent lens and optical plane. The cost of the combined work is greatly reduced, and the tolerance of the fiber array is greatly increased, and the range is larger when the fiber is coupled and adjusted, thereby reducing the coupling difficulty and increasing the coupling efficiency;
2、本发明每根光线的一端均加工出无芯光纤，其中无芯光纤光学平面与基板底面的夹角为30°至60°能够很好地实现光信号照射到光学平面上后的全反射，使光学平面在没有镀膜的情况下，依靠角度的反射即可很好的实现光信号的全反射。2. The core fiber is processed at one end of each light of the invention, wherein the angle between the optical plane of the coreless fiber and the bottom surface of the substrate is 30° to 60°, which can fully realize the total reflection after the light signal is irradiated onto the optical plane. In order to make the optical plane without reflection, the total reflection of the optical signal can be achieved by angle reflection.
附图说明DRAWINGS
图1为本发明用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的俯视图；1 is a top plan view of a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling of the present invention;
图2为本发明用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的正视图；2 is a front elevational view of a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling of the present invention;
图3为图2中A处的局部放大图；Figure 3 is a partial enlarged view of a portion A in Figure 2;
图4为本发明用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法的流程图。4 is a flow chart of a method of fabricating a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling in accordance with the present invention.
主要元件符号说明如下：The main component symbols are described below:
1、基板                        2、盖板1, the substrate 2, the cover
3、光纤                        4、尾胶3, optical fiber 4, tail rubber
11、基板前段                   12、基板后段11, the front section of the substrate 12, the back of the substrate
13、过度斜面                   31、无芯光纤13, excessive slope 31, coreless fiber
311、光学平面                  312、弧形球面。311, optical plane 312, curved spherical surface.
具体实施方式detailed description
为了更清楚地表述本发明，下面结合附图对本发明作进一步地描述。In order to more clearly illustrate the invention, the invention is further described below in conjunction with the drawings.
请参阅图1-3，本发明提供的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列及其制造方法，包括基板1、盖板2和多根光纤3，基板1包括基板前段11和基板后段12，基板前段11上表面高于基板后段12上表面，基板 前段11上表面上设有多个与多根光纤3一一对应的V形槽，每根光纤3均设置在与其对应的V形槽内，且每根光纤3均从基板前段11向前伸出后其端面上熔接有一段带有自聚焦效果的无芯光纤31，盖板2设置在基板前段11上，且盖板2与每个V形槽均围合成固定光纤的容置空间；无芯光纤31包括与基板1底面呈30°至60°夹角的光学平面311和衔接光学平面311与无芯光纤31底面的弧形球面312；外部光信号无芯光纤31自聚焦、弧形球面312聚光和光学平面311反射后进入光纤3内部。Referring to FIG. 1-3, a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling and a manufacturing method thereof are provided, comprising a substrate 1, a cover plate 2 and a plurality of optical fibers 3. The substrate 1 includes a substrate front section 11 and In the rear stage 12 of the substrate, the upper surface of the front portion 11 of the substrate is higher than the upper surface of the rear portion 12 of the substrate, and the substrate The upper surface of the front section 11 is provided with a plurality of V-shaped grooves corresponding to the plurality of optical fibers 3, and each of the optical fibers 3 is disposed in a corresponding V-shaped groove, and each of the optical fibers 3 extends forward from the front portion 11 of the substrate. After the exit, a coreless optical fiber 31 with a self-focusing effect is welded on the end surface thereof, and the cover plate 2 is disposed on the front portion 11 of the substrate, and the cover plate 2 and each V-shaped groove are combined to form a receiving space for the fixed optical fiber; The core fiber 31 includes an optical plane 311 at an angle of 30° to 60° to the bottom surface of the substrate 1 and an arcuate spherical surface 312 connecting the optical plane 311 and the bottom surface of the coreless fiber 31; the external optical signal coreless fiber 31 is self-focusing, curved spherical surface The 312 concentrating and optical plane 311 reflects and enters the inside of the optical fiber 3.
在本实施例中，盖板2与基板后段12之间的光纤3上覆盖有用于固定和保护光纤3的尾胶4，且尾胶4的高度小于或等于盖板2的高度。尾胶4的设置能够对光纤3起到一个固定作用，在光纤3进行后续研磨和使用的时候，能够与盖板2一起组合保证光纤3位置不变；尾胶4的高度小于或等于盖板2的高度在于保证尾胶4的稳定性，如果尾胶4的高度高于盖板2的高度，极易因为使用和加工中的剐蹭导致尾胶4脱落，从而大大缩短尾胶4的使用寿命。在本发明中，此处并不局限于使用尾胶4来辅助固定光纤3，还可以使用其他固定结构，只要能够实现光纤3的良好固定即可。In the present embodiment, the optical fiber 3 between the cover 2 and the rear stage 12 of the substrate is covered with a tail rubber 4 for fixing and protecting the optical fiber 3, and the height of the tail rubber 4 is less than or equal to the height of the cover 2. The setting of the tail rubber 4 can play a fixed role on the optical fiber 3. When the optical fiber 3 is subsequently ground and used, it can be combined with the cover plate 2 to ensure the position of the optical fiber 3 is unchanged; the height of the tail rubber 4 is less than or equal to the cover plate. The height of 2 is to ensure the stability of the tail rubber 4. If the height of the tail rubber 4 is higher than the height of the cover 2, it is easy to cause the tail rubber 4 to fall off due to the use and processing of the crucible 4, thereby greatly shortening the service life of the tail rubber 4. . In the present invention, it is not limited to the use of the tail rubber 4 to assist in fixing the optical fiber 3, and other fixing structures may be used as long as the optical fiber 3 can be well fixed.
在本实施例中，无芯光纤31的长度为0.15mm至0.25mm。在本发明中，无芯光纤31即为无芯光纤31一端加工出来的光学平面311和弧形球面312的组合体，其长度为0.15mm至0.25mm有利于加工机械对光纤3的熔烧加工和研磨加工，同时便于实际使用。In the present embodiment, the coreless optical fiber 31 has a length of 0.15 mm to 0.25 mm. In the present invention, the coreless optical fiber 31 is a combination of an optical plane 311 and a curved spherical surface 312 which are processed at one end of the coreless optical fiber 31, and has a length of 0.15 mm to 0.25 mm, which is favorable for the processing of the optical fiber 3 by the processing machine. And grinding, while at the same time convenient for practical use.
在本实施例中，基板前段11和基板后段12的交界处设有过度斜面13。过度斜面13的设置能够确保过度斜面13处光纤3受到的应力较小，提高了产品的可靠性和制成的合格率，另外，在实际使用过程中，过度斜面13的设置还能够便于容纳尾胶4或其他固定装置，使光纤3在使用和加工过程中更加稳定。In the present embodiment, an excessive slope 13 is provided at the boundary between the substrate front section 11 and the substrate rear section 12. The arrangement of the excessive slope 13 can ensure that the stress on the optical fiber 3 at the excessive slope 13 is small, which improves the reliability of the product and the yield of the product. In addition, in actual use, the setting of the excessive slope 13 can also facilitate the accommodation of the tail. Glue 4 or other fixtures make fiber 3 more stable during use and processing.
在本实施例中，每个V形槽的底面均与基板后段12的上表面高度一致。这样的设置能够保证光纤3安装在V形槽上后，其高度与基板后段12基本保持一致，这样一方面能防止坡度的存在使光纤受力损坏，另一方面可以减少光纤3光路弯曲的角度，更利于光信号的传输。在本发明中，V形槽的底面高度也可以略高于基板后段12的高度或者略低于基板后段12的高度。In the present embodiment, the bottom surface of each of the V-shaped grooves is in line with the height of the upper surface of the rear stage 12 of the substrate. Such an arrangement can ensure that the height of the optical fiber 3 is substantially the same as that of the rear section 12 of the substrate after the optical fiber 3 is mounted on the V-shaped groove. On the one hand, the presence of the slope can be prevented to damage the optical fiber, and on the other hand, the optical path of the optical fiber 3 can be reduced. Angle is more conducive to the transmission of optical signals. In the present invention, the height of the bottom surface of the V-shaped groove may also be slightly higher than the height of the rear section 12 of the substrate or slightly lower than the height of the rear section 12 of the substrate.
请参阅图4，为了实现上述目的，本发明还提供了一种用于VSCEL或PIN 阵列耦合的半球自聚焦透镜光纤阵列的制造方法，该制造方法包括以下步骤：Referring to FIG. 4, in order to achieve the above object, the present invention also provides a VSCEL or PIN. A method of fabricating an array coupled hemispherical self-focusing lens fiber array, the method of manufacturing comprising the steps of:
步骤S1、基板加工：在基板上加工出一个斜坡，斜坡将基板分为基板前段和基板后段，再在基板前段的上表面开设多个与光纤形状大小相适配的V形槽；Step S1: processing the substrate: processing a slope on the substrate, the slope dividing the substrate into a front section of the substrate and a rear section of the substrate, and then opening a plurality of V-shaped grooves corresponding to the shape of the optical fiber on the upper surface of the front section of the substrate;
步骤S2、无芯光纤熔接：在每根光纤的一端均熔接一段无芯光纤，每段无芯光纤的长度和大小保持一致；Step S2: Coreless fiber fusion: a coreless fiber is fused at one end of each fiber, and the length and size of each coreless fiber are consistent;
步骤S3、无芯光纤熔烧：在每根无芯光纤的一端均熔烧形成球面，且该球面的直径与无芯光纤的直径相同；Step S3, coreless fiber melting: melting at one end of each coreless fiber to form a spherical surface, and the diameter of the spherical surface is the same as the diameter of the coreless fiber;
步骤S4、光纤组装：将每根熔接好无芯光纤的光纤置于基板上与其对应的V形槽中，并将熔接有无芯光纤球面的一端从基板前段向前伸出，并保持每根光纤伸出的长度一致，最后将盖板固定在基板前段的上表面以固定光纤，组成光纤阵列；Step S4: assembling the optical fiber: placing each fiber with the coreless fiber in the corresponding V-shaped groove on the substrate, and extending one end of the spherical fiber-free fiber sphere from the front side of the substrate, and keeping each of them The length of the protruding end of the optical fiber is uniform, and finally the cover plate is fixed on the upper surface of the front section of the substrate to fix the optical fiber to form an optical fiber array;
步骤S5、无芯光纤研磨：对每根组装好的无芯光纤加工有球面的一端进行研磨，将球面的上半球面研磨成可以反射光信号的光学平面。Step S5. Coreless fiber polishing: grinding one end of each assembled coreless fiber with a spherical surface, and grinding the upper hemisphere of the spherical surface into an optical plane that can reflect the optical signal.
在本实施例中，在步骤S1中每个V形槽的底面均与基板后段的上表面高度一致。In the present embodiment, the bottom surface of each of the V-shaped grooves is in the same level as the upper surface of the rear stage of the substrate in the step S1.
在本实施例中，步骤S2中熔烧出来的球面的直径为0.15mm至0.25mm。In the present embodiment, the diameter of the spherical surface melted in step S2 is from 0.15 mm to 0.25 mm.
在本实施例中，步骤S3还包括尾胶涂覆：盖板与基板后段之间的每根光纤上覆盖有用于固定和保护光纤的尾胶，且尾胶的高度小于或等于盖板的高度。In this embodiment, step S3 further includes tail rubber coating: each of the optical fibers between the cover plate and the rear portion of the substrate is covered with a tail rubber for fixing and protecting the optical fiber, and the height of the tail rubber is less than or equal to the cover plate. height.
在本实施例中，步骤S4中光学平面与基板底面呈30°至60°的夹角。In this embodiment, the optical plane and the bottom surface of the substrate are at an angle of 30° to 60° in step S4.
本发明的优势在于：The advantages of the invention are:
1、本发明提供的光纤阵列，通过在每根光纤的一端熔接有一段带有自聚焦功能的无芯光纤，再在无芯光纤的端面上加工出光学平面和弧形球面，光学平面和弧形球面的配合能够同时实现透镜聚光和光学平面反射光的优点，同时无芯光纤本身的自聚焦效果也能加强光信号的接收和聚集能力，相比于现有的利用独立透镜和光学平面组合工作其成本大大降低，另外其还大幅增加了光纤阵列的容差，在对光纤进行耦合调整的时候其范围更大，从而降低了耦合的难度和增加了耦合的效率；1. The optical fiber array provided by the present invention, by welding a coreless fiber with a self-focusing function at one end of each fiber, and processing an optical plane and a curved spherical surface, an optical plane and an arc on the end face of the coreless fiber. The spherical shape can simultaneously achieve the advantages of lens concentrating and optical plane reflecting light, and the self-focusing effect of the coreless fiber itself can enhance the receiving and collecting ability of the optical signal, compared with the existing independent lens and optical plane. The cost of the combined work is greatly reduced, and the tolerance of the fiber array is greatly increased, and the range is larger when the fiber is coupled and adjusted, thereby reducing the coupling difficulty and increasing the coupling efficiency;
2、本发明每根光线的一端均加工出无芯光纤，其中无芯光纤光学平面与 基板底面的夹角为30°至60°能够很好地实现光信号照射到光学平面上后的全反射，使光学平面在没有镀膜的情况下，依靠角度的反射即可很好的实现光信号的全反射。2. The core fiber is processed at one end of each light of the present invention, wherein the optical fiber plane of the coreless fiber The angle between the bottom surface of the substrate is 30° to 60°, which can fully realize the total reflection after the light signal is irradiated onto the optical plane, so that the optical plane can realize the optical signal well by the angle reflection without the coating. Total reflection.
以上公开的仅为本发明的几个具体实施例，但是本发明并非局限于此，任何本领域的技术人员能思之的变化都应落入本发明的保护范围。 The above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims (10)

  1. 用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，其特征在于，包括基板、盖板和多根光纤，所述基板包括基板前段和基板后段，所述基板前段上表面高于所述基板后段上表面，所述基板前段上表面上设有多个与多根光纤一一对应的V形槽，每根光纤均设置在与其对应的V形槽内，且每根光纤均从基板前段向前伸出后其端面上熔接有一段带有自聚焦效果的无芯光纤，所述盖板设置在基板前段上，且盖板与每个V形槽均围合成固定光纤的容置空间；所述无芯光纤包括与基板底面呈30°至60°夹角的光学平面和衔接光学平面与无芯光纤底面的弧形球面；外部光信号通过无芯光纤自聚焦、弧形球面聚光和光学平面反射后进入所述光纤内部。A hemispherical autofocus lens fiber array for VSCEL or PIN array coupling, comprising: a substrate, a cover plate and a plurality of optical fibers, the substrate comprising a front portion of the substrate and a rear portion of the substrate, the upper surface of the front portion of the substrate being higher than the a plurality of V-shaped grooves corresponding to the plurality of optical fibers are respectively disposed on the upper surface of the rear portion of the substrate, and each of the optical fibers is disposed in a corresponding V-shaped groove, and each of the optical fibers is from the substrate After the front section is extended forward, a fiber-optic fiber with a self-focusing effect is welded on the end surface thereof, and the cover plate is disposed on the front section of the substrate, and the cover plate and each V-shaped groove are combined to form a receiving space of the fixed optical fiber. The coreless optical fiber comprises an optical plane at an angle of 30° to 60° with the bottom surface of the substrate and an arcuate spherical surface connecting the optical plane and the bottom surface of the coreless fiber; the external optical signal is self-focusing through the coreless fiber, and the spherical spherical surface is concentrated. After being reflected by the optical plane, the inside of the optical fiber is entered.
  2. 根据权利要求1所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，其特征在于，所述盖板与基板后段之间的光纤上覆盖有用于固定和保护光纤的尾胶，且所述尾胶的高度小于或等于盖板的高度。The hemispherical autofocus lens fiber array for VSCEL or PIN array coupling according to claim 1, wherein the optical fiber between the cover plate and the rear portion of the substrate is covered with a tail glue for fixing and protecting the optical fiber. And the height of the tail rubber is less than or equal to the height of the cover plate.
  3. 根据权利要求1所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，其特征在于，所述无芯光纤的长度为0.15mm至0.25mm。The hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling according to claim 1, wherein the coreless fiber has a length of 0.15 mm to 0.25 mm.
  4. 根据权利要求1所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，其特征在于，所述基板前段和基板后段的交界处设有过度斜面。The hemispherical autofocus lens fiber array for VSCEL or PIN array coupling according to claim 1, wherein an interface between the front end of the substrate and the rear portion of the substrate is provided with an excessive slope.
  5. 根据权利要求1所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列，其特征在于，每个V形槽的底面均与基板后段的上表面高度一致。The hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling according to claim 1, wherein the bottom surface of each of the V-shaped grooves is at the same height as the upper surface of the rear stage of the substrate.
  6. 用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，其特征在于，包括以下步骤：A method for fabricating a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling, comprising the steps of:
    步骤1、基板加工：在基板上加工出一个斜坡，斜坡将基板分为基板前段和基板后段，再在基板前段的上表面开设多个与光纤形状大小相适配的V形槽；Step 1. Substrate processing: processing a slope on the substrate, the slope dividing the substrate into a front section of the substrate and a rear section of the substrate, and then opening a plurality of V-shaped grooves corresponding to the shape of the optical fiber on the upper surface of the front section of the substrate;
    步骤2、无芯光纤熔接：在每根光纤的一端均熔接一段无芯光纤，每段无芯光纤的长度和大小保持一致；Step 2: Coreless fiber fusion: a coreless fiber is fused at one end of each fiber, and the length and size of each coreless fiber are consistent;
    步骤3、无芯光纤熔烧：在每根无芯光纤的一端均熔烧形成球面，且该球面的直径与无芯光纤的直径相同；Step 3: Coreless fiber melting: a spherical surface is formed by melting at one end of each coreless fiber, and the diameter of the spherical surface is the same as the diameter of the coreless fiber;
    步骤4、光纤组装：将每根熔接好无芯光纤的光纤置于基板上与其对应的V形槽中，并将熔接有无芯光纤球面的一端从基板前段向前伸出，并保持每根光纤伸出的长度一致，最后将盖板固定在基板前段的上表面以固定光纤，组 成光纤阵列；Step 4: Fiber assembly: Place each fiber with the coreless fiber in the corresponding V-shaped groove on the substrate, and extend one end of the spherical fiber-free fiber sphere from the front of the substrate, and keep each one The length of the fiber extension is the same. Finally, the cover plate is fixed on the upper surface of the front section of the substrate to fix the optical fiber. Fiber array
    步骤5、无芯光纤研磨：对每根组装好的无芯光纤加工有球面的一端进行研磨，将球面的上半球面研磨成可以反射光信号的光学平面。Step 5. Coreless fiber polishing: Grinding one end of each assembled coreless fiber with a spherical surface, grinding the upper hemisphere of the spherical surface into an optical plane that can reflect the optical signal.
  7. 根据权利要求6所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，其特征在于，在步骤1中每个V形槽的底面均与基板后段的上表面高度一致。The method for fabricating a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling according to claim 6, wherein in step 1, the bottom surface of each of the V-shaped grooves is uniform with the upper surface of the rear surface of the substrate. .
  8. 根据权利要求6所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，其特征在于，步骤2中熔烧出来的球面的直径为0.15mm至0.25mm。The method of fabricating a hemispherical self-focusing lens fiber array for VSCEL or PIN array coupling according to claim 6, wherein the spherical surface of the melted portion in step 2 has a diameter of 0.15 mm to 0.25 mm.
  9. 根据权利要求6所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，其特征在于，步骤3还包括尾胶涂覆：盖板与基板后段之间的每根光纤上覆盖有用于固定和保护光纤的尾胶，且所述尾胶的高度小于或等于盖板的高度。The method of fabricating a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling according to claim 6, wherein the step 3 further comprises tail glue coating: each fiber between the cover plate and the rear portion of the substrate. The tail rubber is covered with a tail rubber for fixing and protecting the optical fiber, and the height of the tail rubber is less than or equal to the height of the cover plate.
  10. 根据权利要求6所述的用于VSCEL或PIN阵列耦合的半球自聚焦透镜光纤阵列的制造方法，其特征在于，步骤4中光学平面与基板底面呈30°至60°的夹角。 The method for fabricating a hemispherical autofocus lens fiber array for VSCEL or PIN array coupling according to claim 6, wherein in step 4, the optical plane is at an angle of between 30 and 60 degrees from the bottom surface of the substrate.
PCT/CN2017/089071 2017-02-16 2017-06-19 Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor WO2018149069A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710084501.6 2017-02-16
CN201710084501.6A CN106908915A (en) 2017-02-16 2017-02-16 For the hemisphere GRIN Lens fiber array and its manufacture method of the coupling of VSCEL or PIN arrays

Publications (1)

Publication Number Publication Date
WO2018149069A1 true WO2018149069A1 (en) 2018-08-23

Family

ID=59208457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/089071 WO2018149069A1 (en) 2017-02-16 2017-06-19 Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor

Country Status (2)

Country Link
CN (1) CN106908915A (en)
WO (1) WO2018149069A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060067620A1 (en) * 2004-09-29 2006-03-30 The General Hospital Corporation System and method for optical coherence imaging
US20090052849A1 (en) * 2007-08-22 2009-02-26 Gwangju Institute Of Science And Technology Optical fiber probe for side imaging and method of manufacturing the same
CN101520530A (en) * 2009-03-26 2009-09-02 武汉电信器件有限公司 Novel sideward coupling optical fiber component and processing method thereof
CN204028413U (en) * 2014-09-05 2014-12-17 曾振林 A kind of novel optical fiber side coupled fiber array
CN105372770A (en) * 2015-12-14 2016-03-02 华中科技大学 Optical fiber coupling module
US9435959B2 (en) * 2012-04-26 2016-09-06 Acacia Communications, Inc. Coupling of fiber optics to planar grating couplers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205404901U (en) * 2016-03-07 2016-07-27 深圳市鹏大光电技术有限公司 A fiber array that be used for with VSCEL or coupling of PIN array

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060067620A1 (en) * 2004-09-29 2006-03-30 The General Hospital Corporation System and method for optical coherence imaging
US20090052849A1 (en) * 2007-08-22 2009-02-26 Gwangju Institute Of Science And Technology Optical fiber probe for side imaging and method of manufacturing the same
CN101520530A (en) * 2009-03-26 2009-09-02 武汉电信器件有限公司 Novel sideward coupling optical fiber component and processing method thereof
US9435959B2 (en) * 2012-04-26 2016-09-06 Acacia Communications, Inc. Coupling of fiber optics to planar grating couplers
CN204028413U (en) * 2014-09-05 2014-12-17 曾振林 A kind of novel optical fiber side coupled fiber array
CN105372770A (en) * 2015-12-14 2016-03-02 华中科技大学 Optical fiber coupling module

Also Published As

Publication number Publication date
CN106908915A (en) 2017-06-30

Similar Documents

Publication Publication Date Title
TWI497142B (en) Optical fiber connector
WO2010108399A1 (en) Laterally coupled optical fiber component and processing method thereof
CN102213807A (en) Single-fiber bidirectional transceiver module and capsulation thereof
CN205404901U (en) A fiber array that be used for with VSCEL or coupling of PIN array
CN102621641A (en) Optical fiber connector
CN104898215A (en) Simple coupled parallel light transmit-receive engine used for interconnection between boards
US9207114B2 (en) Photoelectric conversion device
US9046667B2 (en) Photoelectric conversion device and optical fiber coupling connector
CN206096549U (en) Optical fiber collimator
TWI565988B (en) Optical-electric coupling element and optical-electric converting device using same
US20180252876A1 (en) Optical apparatus, stub device
CN103944062A (en) Semiconductor laser unit of single chip optical fiber coupling output
CN108459383B (en) Optical coupling module and optical fiber connector
WO2018149069A1 (en) Hemispherical self-focusing lens optical fibre array for vcsel or pin array coupling, and manufacturing method therefor
CN107238900B (en) A kind of coaxial package of optical device of antireflection
CN109143497A (en) A kind of optical module
CN205509227U (en) Optic fibre output TO encapsulation semiconductor laser
CN206497228U (en) The packaged lens fiber array coupled for VSCEL or PIN arrays
JPH05297245A (en) Multi-fiber optical connector
CN207611173U (en) A kind of high-speed light receiving unit of light path optimization design
CN206671615U (en) Spherical mirror fiber array for the coupling of VSCEL or PIN arrays
CN206960729U (en) Self-focusing sphere fiber array for the coupling of VSCEL or PIN arrays
CN206497226U (en) The self focusing light fibre array coupled for VSCEL or PIN arrays
TW201441699A (en) Optical communication module
CN106842428A (en) For the self focusing light fibre array and its manufacture method of the coupling of VSCEL or PIN arrays

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17897202

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17897202

Country of ref document: EP

Kind code of ref document: A1